white stringy in aquarium

[oc.eannn]

not sure if you can see very well but there is white string like substance in the tank what is it and is it safe?

 

[Rocky998]

not sure if you can see very well but there is white string like substance in the tank what is it and is it safe? View attachment 166496

Could you circle the part on the image? I can't see it... I'm bad at trying to look for stuff

 

[oc.eannn]

Could you circle the part on the image? I can't see it... I'm bad at trying to look for stuff

 

[Rocky998]

Hmmm... Could be some sort of algae or fungus but I don't know for sure...
Maybe @Colin_T knows?